... ball/Swivel head 3'';4''5;''6''size Industrial heavy duty caster wheel Heavy Duty Caster /Four Size available (4'',5'',6'',8 ... High shock absorption /High abrasion resistance/ High Stain resistance [Others]:Wheel Diameter /Four size available(100,125,150,200mm) Thread Width ... in 50mm Load capacity /Four Size available(300,350,400,450Kgs) Load Height / Four Size available(142,164 ...